Vibratory feeder



E Feb. 12, 1946. Q J, JOHNSON I 2,394,914

' VIBRATORY FEEDER r Filed Aug. 14, 1944 i INVENTOR; CL'Aus JEJOHNSON,

Patented F eb. .12, 1946 2'. "UNITED STATES "PATENT OFFICE Claus ijohnson, Columbus, Ohio, ass'ignor to The Jeffrey Company, a corporationof Ohio Application August 14, 1944, seriai No. Maize 4 chime. (o1.198--220) This invention relates to a vibratory feeder.

An object of the invention is to provided feeder of the above mentionedtype which is designed particularly to handle fine material such aspowdered carbon and to prevent flooding thereof.

Another object of the invention is to provide an improved deck for avibratory feeder and-to pro vide a vibratory feeder as well, in whichthedeck is constructed of a plurality of tubes and is capable'ofhandling fine granular material such as powdered carbon or any othersimilar material whichhas a tendency to flood.-

Otherobjects of the invention will appear hereinafter, the novel.features and combinations be ing setforth in the appended claims.

In the accompanying drawing:

Fig. l i'saa. side elevational view of a vibratory feeder incorporatingthe features of my invention;

Fig. 2 is a front view showing particularly the deck of the feeder ofFlg. 1; i s

Fig. 3 is a rear view of the feeder of Fi g'l- 1, looking in thedirection of the arrows; and

Fig. 4: is a sectional view through the feed chamber of the feeder takenon the line: 4'---4 of Fig. 1-,.looking1inrthe'directiorrofthe' arrows.I

The feeding of very finely ground or powdered material with: a vibratoryfeederhas long been a troublesome problem. because material'oi this typefrequently tends to flood or flow like a liquid even when vibration ofthe vibratory feeder is stopped, or it frequently tends to fiow in anuncontrollable manner when the feeder is in opera- .tion. In otherwords, it frequently does not respond to the amplitude of vibrationofthe feeder, which response is extremely desirable when the feed rate ofany material is to be controlled. I have discovered that material ofthis type, of which pulverized or powdered carbon or carbon black is onematerial which is specified purely as illustrative of this general type,can be fed by a vibratory feeder and controlled, flooding beingprevented by a special deck construction which shall be describedhereinafter.

Referring particularly to Figs. 1 and 3 of the drawing, the feederincludes a vibratory electromagnetic motor l0 which is of well knownconstruction being embodied in vibratory feeders commercially known asJeifrey-Traylor feeders. Reference is made to the patent to James A.

Flint, No. 2,153,243, dated April 4, 1939, for a Vibratory screen, whichshows in more detail the motor which I employ and which describes inmore detail the operation of vibratory devices of this general type.

Rigidly attached tothe' erossnead of urea-mag tur'e'of said motor I0 isa pair of spaced'arfii's' H which with the cross head fdi'rii a yokewhich transmit reciprocatory vibration from the atria; ture f the motorIn to a deck" f, the aims n being pivotally' connected to the; deck[2155f threaded attaching stub shafts' of tjrunnions and associated nutsdesignated 13. illustrated, the ahglebetweefi the aids ofvibr'ation orthe motor Ill, which is'ii'i a plane taken through the axes of the armsu, may be adjusted with respect to a general plane of the deck f 2 whichmay be? sidered as a plane intersecting the ares-of the: tunesthereoi'by the above meritiond iiivd' connection and by an adjustableconnection pfo video by arcuat'eplates on the deck I2 6! which is seenat" 4. said arcuate' prapesneiug provided with aplurality arm eswhichselecg tively recei-Ve'nuts and bolts f5 which efiitrid through saidplates It and the arms fl. If as; sired, the arms H ma pie-connected ata fitted angle to the deck [2. 'rhe mainframe or main casting of themotor H1 is'inouritedofi shocli'abi sorbiiig means; i'llustrated asspaced springs Hithe' bottoms of which rest" upon" anyge s'iifed sup a:structure, baserrame; cancer. he deck: 12; 15' also resilientlysupported bya csu spring ii, are bottom of which is receivedina clipand-sup" ported upon the superstructure; c-dlum'n. 6i

other desired supporting member.

A portion of my invention lies in the structure of the deck I2. Saiddeck l2 includes a plurality.

of cylindrical tubes I8 and in the drawing I have illustrated two suchtubes though the number may be increased if desired. The two tubes l8are rigidly attached together as by attaching cross pieces l9 which arewelded to said tubes. At the rear of the deck l2 and forming a partthereof there is a feed chamber 20 which is formed of spaced side wallsand front and rear walls; The two tubes I8 extend into the feed chamber20 but inside said feed chamber the two tubes have their top halvesremoved and between said two tubes within the feed chamber 2!! there isa ridge 2| (see Fig. 4) which constitutes a dividing plate and directsmaterial inside the feed chamber 20 into the bottoms of said tubes I8.The bottomof the chamber 20 is formed by the portions of tubes I8 whichextend into said chamber 20.

In the operation of the device, the pulverized The vibratory motionimparted to the deck [2 by the motor has both a horizontal andperpendicular component relative to the plane of said deck l2 and as iswell understood in the art to which this device relates this will causefeeding of the carbon black to the right through the tubes 18. As abovementioned, the tubular formation of the deck 12 will prevent flooding ofthis fine material and the feeding thereof will be under control at alltimes.

In the drawing, the axis of the tubes [8 is generally sloping upwardlyfrom the feed end to the discharge end on the right. Thi is one possibleposition of operation but it is to be understood that the said devicemay be eithe horizontal or may be given a downward slope from the feedend to the discharge end.

Obviously those skilled in the art may make various changes in thedetails and arrangement of parts without departing from the spirit andscope of the invention as defined by the claims hereto appended and Iwish therefore not to be restricted to the precise construction hereindis closed.

I-Iaving thus described and shown an embodiment of my invention, what Idesire to secure by Letters Patent of the United States is:

1; In a vibratory conveyor adapted to convey finely divided materialhaving flooding characteristics, a deck unit and a vibratory motorincluding an armature, said deck unit including a hopper and separateclosed conveyor tubes positioned side by side extending substantiallysidewardly from adjacent the bottom of said hopper,.said tubes beingconnected rigidly to said hopper and to each other to vibrate as a unit,a portion of each of said tubes forming a portion of the bottom of saidhopper, dividing means in the bottom of said hopper connecting saidtubes for directingrmaterial to be conveyed from said hopper into saidtubes, a yoke adapted to be mounted to said motor armature fortransmitting vibratory motions thereof to said hopper andtubes,.trunnion means pivotally supporting said hopper and tubes betweenthe arms'of said yoke, and'means for adjusting the angular relationshipbetween a plane taken through said yoke and a plane taken through saidtubes whereby the flooding of material being conveyed may be controlled.1

2. A conveyor deck unit adapted to receive vibratory material conveyingimpulses from an impulse imparting means including a hopper and separateclosed conveyor tubes positioned side by side extending substantiallysidewardly from adjacent the bottom of said hopper, said tubes beingconnected rigidly to said hopper and to each other to vibrate as a unit,a portion of each of said tubes forming a portion of the bottom of saidhopper, dividing means in the bottom of said hopper connecting saidtubes for directing material to be conveyed from said hopper into saidtubes, and mounting means forming a part of said deck unit includingtrunnion means adapted to connect said deck unit with said impulseimparting means and means adapted to cooperate with said impulseimparting means for adjustably fixing the angular relationship betweenthe axis of the conveying impulses imparted by said impulse impartingmeans and th axes of said tubes.

' 3. A conveyor deck unit adapted to receive vibratory materialconveying impulses from an impulse imparting means including a hopperand separate closed conveyo tubes positioned side by side extendingsubstantially sidewardly from adjacent the bottom of said hopper, saidtubes being connected rigidly to said hopper to vibrate therewith and aportion of each of said tubes forming a portion of the bottom thereof,dividing means in the bottom of said hopper connecting said tubes fordirecting material to be conveyed from said hopper into said tubes, and

mounting means forming a part of said deck unit providing for angularadjustment of it with respect to the axis of the conveying impulsesdelivered by said impulse imparting means.

4. An article of manufacture comprising a conveyor deck adapted toreceive vibratory material conveying impulses from a motor and tovibrate as a unit including a hopper and separat closed conveyor tubesextending substantially sidewardly from adjacent the bottom of saidhopper, said tubes being positioned side by side and connected rigidlyboth together and to said hopper, a portion of each of saidtubes'forming a portion of the bottom of said hopper, and dividing meansforming part of the hopper and connecting said tubes for directingmaterial to be conveyed from said hopper into said tubes.

, CLAUS J. JOHNSON.

